Simple authentication hosted in Europe

Say goodbye to endless config files, surprise pricing, and compliance headaches. Our authentication service makes it easy to secure your app and manage your users. Whether you're just launching, or scaling to millions.

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Modern. Pre-configured. Hosted in Europe.

Authentication, just a redirect away.

We keep things simple by skipping outdated login methods that are clunky or insecure. Instead, we focus on today’s best practices. That means less surface area for attackers, faster integration for your team, and a login experience your users will actually like.

Kiavi login example
Pre-configured and opinionated
Social logins, magic links, and more, ready out of the box.
Zero-setup
Use our hosted login and signup pages to get started with a single redirect. Authentication is supposed to be boring and with us, it is.
Fully hosted in the EU
Kiavi is hosted in Paris or Amsterdam by a European company. No dependencies on Big Tech cloud providers.
Security by design
Your app communicates with an isolated instance dedicated to your app. No shared data.
Open source core
Built on battle tested open source software used by top tech companies.
Competitive pricing
With only 0.02 € per MAU we are one of the most affordable authentication services. No hidden fees.

All major social login providers are supported

and many more

Pricing

Simple, transparent pricing

Pay only for what you use. No setup fees, no hidden costs. Scale from your first user to millions with predictable pricing.

⚡ Keep your auth blazing fast

Add infrastructure warmup for €20/month to eliminate cold starts and ensure sub-100ms response times

Pay as you go

Perfect for startups and growing apps. Pay only for active users.

€0.02 /MAU

Monthly Active Users

Get started
  • Unlimited applications
  • Email & magic link authentication
  • Social login providers
  • Multi-factor authentication (TOTP)
  • User management dashboard
  • Serverless (cold starts for first request)

Performance

Lightning-fast auth with guaranteed performance. Best for production apps.

€0.02 /MAU + €20/mo

Includes infrastructure warmup

Get started
  • Everything in Pay as you go
  • 10-100ms response times
  • No cold starts - always warm
  • Priority support
  • Advanced analytics & monitoring

Enterprise

On-premise or custom cloud deployments with dedicated support.

Custom

Contact sales for pricing

Contact sales
  • On-premise deployment
  • Custom authentication flows
  • SAML & enterprise SSO
  • Dedicated infrastructure
  • 24/7 phone & email support
  • Compliance certifications

All plans include GDPR compliance, EU data hosting, and unlimited team members.

Ready to simplify your authentication?

Join Kiavi for secure, scalable authentication. Get started in minutes with our European-hosted service.

Get started Learn more